A. O. Smith's Signature 100 Series Short Low NOx Atmospheric Vent 40-Gallon Natural Gas Water Heater is designed to provide efficient and reliable hot water for households with 3 to 4 people when sized appropriately. With an environmentally friendly 40,000 BTU Low NOx gas burner, this model delivers 67 gallons of hot water in the first hour. The electronic gas valve provides precise temperature control for optimum hot water delivery without the need for an external power source. For your convenience, the gas valve also includes an LED status indicator for diagnostics reporting and a push button ignition to simplify the startup process. A.O. Smith's 40-gallon model is designed with your safety in mind. With a built-in safety system, this model reduces the risk of accidental flammable vapor ignitions. A factory-installed temperature and pressure relief valve and tamper-proof drain valve also ensures safe operation. This model is built to last. It features Tank Guard® which is designed to proivde ultimate tank protection and increase lifespan of the water heater. This added protection comes with a 12-year limited warranty to give you additional peace of mind. Call 1-877-GOLowes to get this water heater installed same day.
Delivers the ideal amount of hot water for households with 3 to 4 people when sized appropriately
Features an environmentally-friendly 40,000 BTU low NOx gas burner that provides a first hour delivery of 65 gallons
Electronic gas valve provides precise temperature control for optimum hot water delivery
Self-diagnostic electronic gas control incorporates an LED status indicator that monitors and reports on system operational status
Built-in safety system reduces the risk of accidental flammable vapor ignitions
Short 51.5-in H x 22-in diameter design is ideal for condensed spaces like under staircases and closet installations
Tank Guard® provides advanced tank protection that extends the life of your gas water heater
High-altitude certified from 0 ft to 10,100 ft
Provides peace of mind with a 12-year limited tank and parts guarantee and a 3-year limited labor warranty
